why sampler.get_autocorr_time() gives nans!
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Description
trying to estimate 6 paramaters, nwalkers=32, nsteps=1e6
tau = sampler.get_autocorr_time()
print("taus", tau)
gives: taus [nan nan 1. nan 1. 1.]?
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First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start by reproducing the six-parameter, 32-walker run shown in the issue and inspect the output of sampler.get_autocorr_time(). Determine why some autocorrelation estimates become NaN or 1; done means identifying a reproducible cause and documenting or correcting the behavior with a validating test.
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Assessment
- Tech stack
- python
- Domain
- data
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 25/100